Finding the Fourth Proportional to 1,263,012,674.58, 1,742,763,860.01 and 727,060,740.75
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Solution
The fourth proportional to 1,263,012,674.58, 1,742,763,860.01 and 727,060,740.75 is: 1,003,232,357.45
Step by Step Solution
- Step 1: Write the proportion equation
1,263,012,674.58 : 1,742,763,860.01 = 727,060,740.75 : x - Step 2: Convert to fraction form
1,263,012,674.58/1,742,763,860.01 = 727,060,740.75/x - Step 3: Cross multiply
1,263,012,674.58x = 1,742,763,860.01 × 727,060,740.75 - Step 4: Simplify right side
1,263,012,674.58x = 1,267,095,183,011,200,000 - Step 5: Solve for x
x = 1,267,095,183,011,200,000/1,263,012,674.58 - Step 6: Final answer
x = 1,003,232,357.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.